Legal analysis: Social welfare funds refer to funds that use the proceeds for designated social welfare undertakings, such as welfare funds, science and technology development funds, education development funds, and literary award funds. According to China's relevant policies, various social welfare funds can be used for securities investment to maintain and increase value.

Legal basis: According to Article 17 of the Donation Law of People's Republic of China (PRC) for Public Welfare, public welfare social organizations should use the donated property to fund activities and undertakings that meet their purposes. The property donated for disaster relief shall be used for disaster relief activities in a timely manner. The amount of funds used by the foundation to finance public welfare undertakings each year shall not be less than the proportion stipulated by the state.

Public welfare social organizations shall strictly abide by the relevant provisions of the state and actively realize the preservation and appreciation of donated property in accordance with the principles of legality, safety and effectiveness.

Public welfare and non-profit institutions shall use the donated property for the development of public welfare undertakings and shall not use it for other purposes.

For donated property that is difficult to store and transport and exceeds the actual needs, the donee can sell it, and all the proceeds will be used for donation purposes.